#include "menu.h"
struct Person
{
    int number;
    std::string name;
    int gender;
    int age;
    std::string phone;
    std::string address;
};

const int num_person = 1000;

struct Contact
{
    Person people[num_person];
    int size = 0;
    int limit = num_person;
};

Contact *const contact = new Contact; // 创建一个指针变量，需要进行内存分配

